He was flown unconscious to Brisbane, four days after first complaining of being ill, where he later died.

What’s happening on Nauru and Manus?

Australia intercepts all asylum seekers who try to reach its shores by boat.

It insists they will never be able to resettle in Australia – even if they are found to be refugees – and over the years has sent many to privately run “processing centres” it funds on Nauru, or Manus Island in Papua New Guinea.

According to figures provided by the Refugee Council of Australia, more than 1,200 asylum seekers were believed to be on the islands last November – about 600 people on each.

Australia’s processing centre for asylum seekers on Nauru has long been plagued by allegations of human rights abuses, with one professor of psychiatry saying children as young as eight were showing “suicidal behaviour”.

Many of these children have lived most of their lives in these detention centres – though Australia has now said that the last four migrant children on Nauru have been moved to the US.

Australia maintains that its immigration policy prevents deaths at sea and discourages people-smugglers.